body {
  background: #F8F9FB;
}
.top_header {
  position: absolute;
}
.top_header .nav a {
  color: #ffffff;
  text-decoration: none;
}
.top_header .login_reg a:nth-child(1) {
  color: #ffffff;
  border: 1px solid #d1d1d1 !important;
}
.top_header .login_reg a:nth-child(2) {
  color: #ffffff;
}
.active {
  color: #fff !important;
  border-bottom: 3px solid #fff !important;
}
.Assist {
  width: 100%;
  height: 360px;
  background-color: rgba(0, 0, 0, 0.88);
}
.Assist .Assist_background {
  width: 1200px;
  height: 360px;
  margin: auto;
  color: #fff;
  text-align: center;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%);
}
.Assist .Assist_background h1,
.Assist .Assist_background p {
  position: relative;
  top: 43%;
  transform: translateY(-50%);
  margin: 0;
}
.Assist .Assist_background p {
  width: 1200px;
  margin-top: 20px;
}
.tycoon .line {
  width: 18px;
  height: 3px;
  background: #5f9cff;
  margin: 10px 0;
}
.tycoon .common-title {
  padding-top: 30px;
  font-weight: bold;
}
.tycoon .english-txt {
  font-size: 12px;
  color: #666;
}
.tycoon .case-title {
  margin: 30px 0 20px 0;
  font-weight: bold;
  position: relative;
}
.tycoon .case-title::after {
  display: inline-block;
  content: "";
  width: 16px;
  height: 3px;
  position: absolute;
  top: 19px;
  left: 0;
  background-color: #1271ef;
}
.tycoon .case-list {
  display: flex;
}
.tycoon .case-list li {
  width: 355px;
  height: 340px;
  margin-right: 20px;
  border: solid 1px #ddd;
  padding: 10px;
}
.tycoon .case-list li .imgs {
  width: 100%;
}
.tycoon .case-list li h4 {
  color: #181818;
  margin: 30px 0 15px 0;
}
.tycoon .case-list li p {
  font-size: 12px;
  color: #666;
  line-height: 12px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
}
.tycoon .case-list li span {
  display: block;
  color: #1271ef;
  margin-top: 20px;
}
.tycoon .case-list li:nth-child(3n) {
  margin-right: 0;
}
.tycoon .Partners-list {
  display: flex;
  flex-wrap: wrap;
}
.tycoon .Partners-list li {
  width: 355px;
  height: 120px;
  margin-right: 20px;
  margin-bottom: 20px;
  background-color: #fff;
  text-align: center;
  line-height: 150px;
}
.tycoon .Partners-list li:nth-child(3n) {
  margin-right: 0;
}
.floor {
  position: fixed;
  top: 50%;
  right: 400px;
  cursor: pointer;
}
.floor li {
  margin: 20px 0;
  font-size: 14px;
}
.floor .target::before {
  position: absolute;
  left: -20px;
  content: "";
  width: 13px;
  height: 3px;
  background-color: #1271ef;
  margin-top: 5px;
}
footer {
  background: #ffffff;
}
